Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from SE8000118Aexternal-prioritypatent/SE420141B/sv
Application filed by Ragnar JoenssonfiledCriticalRagnar Joensson
Publication of NO812964LpublicationCriticalpatent/NO812964L/no
Publication of NO158276BpublicationCriticalpatent/NO158276B/no
Publication of NO158276CpublicationCriticalpatent/NO158276C/no